The fidelity of the intervention will be monitored by a PhD student, using a voice recorder on the intervention nurse' interactions with the dyads. Investigator will track the fidelity whether the intervention protocol is followed. Any difference from the intervention protocol will be examined by reviewing the voice records. Fidelity in the education control group will be monitored by the same procedures as well. To prevent loss of 5-month medication adherence after the end of the 1 month intervention phase, a research assistant will conduct home visits of the dyads every 2 months to download the medication adherence data from the EMS and serve as a memory cue to remind the PWCIs to take their medication. This is a strategy consist with investigator's PM theory as well as Insel et al. and may strengthen the multifaceted memory intervention. However, the research assistant(s) making visits will be careful not to discuss the intervention in both education and intervention conditions.